Stencil



P. BIEGHETTI Sept. 23 1924.

STENCIL Filed D60. 27, 1922 IN V EN TOR. PE'TF/i 556/7577? ATTORNEYS.

Patented Sept. 23, 1924.

PETER BEGHETTI, OF SAN FRANCISCO, CALIFORNIA.

STENCIL.

Application filed December 2 To all whom it may concern Be it known thatI, PETER BEGHETTI, a subject of the King of Italy, residing at the cityand county of San Francisco and State of California, have inventednewand useful Improvements in Stencils, of which the following is aspecification.

This invention relates to stencils of the changeable letter type, andhas for its: object to simplify and improve the construction andoperation of such a stencil and provide a device in which the letterscan be quickly and easily interchanged or replaced.

In carrying out this object I employ a stencil frame adapted to supporta plurality of individual stencil plates in various arrangements andcombinations. The frame is fitted with a hinged clamping member whichmay be easily manipulated to clamp the stencil plates in position. Theindividual plates are so constructed as to permit of easy manipulation.

One form which my invention may assome is exemplified in the followingdescription and illustrated in the accompanying drawings, in which Fig.1 shows a plan View of a stencil em;- bodying my invention.

Fig. 2 shows a cross section of the same.

Fig. 3 shows a longitudinal, sectional view thereof.

Referring in detail to the accompanying drawing, 1 show a stencil frame10 adapted to serve as a holder for individual plates. This frame ispreferably formed of a single piece of sheet metal curled at its edges11 to afford increased strength and rigidity and bent to form parallelguide members 12 on one of its faces. These guide members assist inpositioning, the stencil plates and also increase the strength andrigidity of the frame.

Formed in the frame between the guide members 12 are a plurality of rowsof rectangular apertures 13, the apertures in each row being separatedby cross webs 141. The cross webs in each row are aligned with relationto those of the adjacent row.

For use with each frame I provide a set of individual stencil p ates 15,each cut out 7, 1922. Serial No. 609,190.

to form a letter, numeral or other sign character. These stencil platesare formed with an offset face 16 adapted to seat in the apertures 13 inthe frame, the plates being of a size and shape to cover one of thespaces or apertures 13. Each plate has an upstanding flange 17 formed atone of its ends, said flange being adapted to be engaged by the thumband finger of the operator for convenience in positioning the plates inplace. The side edges of the plates are formed with projections 18,which abut when the plates are assembled in rows to prevent overlappingof the plates.

To maintain the plates in position on the frame I provide a clampingmember 19 for each row, said clamping member being formed with a rodbent into shape and hinged at one end of the frame, as shown at 20. Theopposite end of the clamping member co-operates with a pivoted latch 21,which serves to retain it in position overlying the stencil plates. Theclamping member is of such width that one of its sides lies against theinside face of the upstanding flange on the stencil plates, thussecurely locking the plates against sidewise movement. The offset faceon the plates, being seated within the open space in the frame, willalso assist in preventing displacement of the stencil plates.

Various changes in the construction and arrangement of the several partsherein shown and described may be employed without departing from thespirit of my invention as disclosed in the appended claims.

Having thus described my invention, what I claim and desire to secure byLetters Patent is 1. A stencil comprising a frame formed with aplurality of rows of apertures, a plurality of individual stencil platesadapted to register with said apertures, each plate having an upstandingflange at its end and a U-shaped member pivoted at one end to the framein line with each row of apertures and adapted to fit within theupstanding flange of the said stencil plates and means for latching thesaid U-shaped member in position on the frame.

2. A stencil comprising a frame formed be arranged in registry with theapertures of a single sheet of metal, said frame being and having offsetfaces toseat Within the provided with a plurality of spaced apersaidapertures and a clamping member 0 tures arranged in parallel rows, saidframe hinged at one end of the frame and arranged 5 being bent to form aplurality of guide above each row of apertures for retaining membersbetween the rows, of apertures, a the stencil plates in position on theframe. set of individual stencil plates adapted to PETER BEGHETTI.

